Question

6x/5=2x-9 encontre o valor de x nas equaçoes

Answer 1

Resposta:

$\frac{6x}{5} = 2x - 9 \\ \\ 6x = 5 \times (2x - 9) \\ 6x = 10x - 45 \\ \\ 6x - 10x + 45 = 0 \\ - 4x + 45 = 0 \\ - 4x = - 45 \times ( - 1) \\ 4x = 45 \\ \\ x = \frac{45}{4}$